First commit

vendor/PicoDb/Database.php

@@ -0,0 +1,108 @@
+<?php
+
+namespace PicoDb;
+
+class Database
+{
+    private $logs = array();
+    private $pdo;
+
+
+    public function __construct(array $settings)
+    {
+        if (! isset($settings['driver'])) {
+
+            throw new \LogicException('You must define a database driver.');
+        }
+
+        switch ($settings['driver']) {
+
+            case 'sqlite':
+                require_once __DIR__.'/Drivers/Sqlite.php';
+                $this->pdo = new Sqlite($settings['filename']);
+                break;
+
+            default:
+                throw new \LogicException('This database driver is not supported.');
+        }
+
+        $this->pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
+    }
+
+
+    public function setLogMessage($message)
+    {
+        $this->logs[] = $message;
+    }
+
+
+    public function getLogMessages()
+    {
+        return $this->logs;
+    }
+
+
+    public function getConnection()
+    {
+        return $this->pdo;
+    }
+
+
+    public function escapeIdentifier($value)
+    {
+        return $this->pdo->escapeIdentifier($value);
+    }
+
+
+    public function execute($sql, array $values = array())
+    {
+        try {
+
+            $this->setLogMessage($sql);
+            $this->setLogMessage(implode(', ', $values));
+
+            $rq = $this->pdo->prepare($sql);
+            $rq->execute($values);
+
+            return $rq;
+        }
+        catch (\PDOException $e) {
+
+            if ($this->pdo->inTransaction()) $this->pdo->rollback();
+            $this->setLogMessage($e->getMessage());
+            return false;
+        }
+    }
+
+
+    public function startTransaction()
+    {
+        $this->pdo->beginTransaction();
+    }
+
+
+    public function closeTransaction()
+    {
+        $this->pdo->commit();
+    }
+
+
+    public function cancelTransaction()
+    {
+        $this->pdo->rollback();
+    }
+
+
+    public function table($table_name)
+    {
+        require_once __DIR__.'/Table.php';
+        return new Table($this, $table_name);
+    }
+
+
+    public function schema()
+    {
+        require_once __DIR__.'/Schema.php';
+        return new Schema($this);
+    }
+}

vendor/PicoDb/Drivers/Sqlite.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace PicoDb;
+
+class Sqlite extends \PDO {
+
+
+    public function __construct($filename)
+    {
+        parent::__construct('sqlite:'.$filename);
+
+        $this->exec('PRAGMA foreign_keys = ON');
+    }
+
+
+    public function getSchemaVersion()
+    {
+        $rq = $this->prepare('PRAGMA user_version');
+        $rq->execute();
+        $result = $rq->fetch(\PDO::FETCH_ASSOC);
+
+        if (isset($result['user_version'])) {
+
+            return $result['user_version'];
+        }
+
+        return 0;
+    }
+
+
+    public function setSchemaVersion($version)
+    {
+        $this->exec('PRAGMA user_version='.$version);
+    }
+
+
+    public function getLastId()
+    {
+        return $this->lastInsertId();
+    }
+
+
+    public function escapeIdentifier($value)
+    {
+        if (strpos($value, '.') !== false) return $value;
+        return '"'.$value.'"';
+    }
+}

vendor/PicoDb/Schema.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace PicoDb;
+
+class Schema
+{
+    protected $db = null;
+
+
+    public function __construct(Database $db)
+    {
+        $this->db = $db;
+    }
+
+
+    public function check($last_version = 1)
+    {
+        $current_version = $this->db->getConnection()->getSchemaVersion();
+
+        if ($current_version < $last_version) {
+
+            return $this->migrateTo($current_version, $last_version);
+        }
+
+        return true;
+    }
+
+
+    public function migrateTo($current_version, $next_version)
+    {
+        try {
+
+            $this->db->startTransaction();
+
+            for ($i = $current_version + 1; $i <= $next_version; $i++) {
+
+                $function_name = '\Schema\version_'.$i;
+
+                if (function_exists($function_name)) {
+
+                    call_user_func($function_name, $this->db->getConnection());
+                    $this->db->getConnection()->setSchemaVersion($i);
+                }
+                else {
+
+                    throw new \LogicException('To execute a database migration, you need to create this function: "'.$function_name.'".');
+                }
+            }
+
+            $this->db->closeTransaction();
+        }
+        catch (\PDOException $e) {
+
+            $this->db->cancelTransaction();
+            return false;
+        }
+
+        return true;
+    }
+}

vendor/PicoDb/Table.php

@@ -0,0 +1,430 @@
+<?php
+
+namespace PicoDb;
+
+class Table
+{
+    private $table_name = '';
+    private $sql_limit = '';
+    private $sql_offset = '';
+    private $sql_order = '';
+    private $joins = array();
+    private $conditions = array();
+    private $or_conditions = array();
+    private $is_or_condition = false;
+    private $columns = array();
+    private $values = array();
+    private $distinct = false;
+    private $group_by = array();
+
+    private $db;
+
+
+    public function __construct(Database $db, $table_name)
+    {
+        $this->db = $db;
+        $this->table_name = $table_name;
+
+        return $this;
+    }
+
+
+    public function save(array $data)
+    {
+        if (! empty($this->conditions)) {
+
+            return $this->update($data);
+        }
+        else {
+
+            return $this->insert($data);
+        }
+    }
+
+
+    public function update(array $data)
+    {
+        $columns = array();
+        $values = array();
+
+        foreach ($data as $column => $value) {
+
+            $columns[] = $this->db->escapeIdentifier($column).'=?';
+            $values[] = $value;
+        }
+
+        foreach ($this->values as $value) {
+
+            $values[] = $value;
+        }
+
+        $sql = sprintf(
+            'UPDATE %s SET %s %s',
+            $this->db->escapeIdentifier($this->table_name),
+            implode(', ', $columns),
+            $this->conditions()
+        );
+
+        $result = $this->db->execute($sql, $values);
+
+        if ($result !== false && $result->rowCount() > 0) {
+
+            return true;
+        }
+
+        return false;
+    }
+
+
+    public function insert(array $data)
+    {
+        $columns = array();
+
+        foreach ($data as $column => $value) {
+
+            $columns[] = $this->db->escapeIdentifier($column);
+        }
+
+        $sql = sprintf(
+            'INSERT INTO %s (%s) VALUES (%s)',
+            $this->db->escapeIdentifier($this->table_name),
+            implode(', ', $columns),
+            implode(', ', array_fill(0, count($data), '?'))
+        );
+
+        return false !== $this->db->execute($sql, array_values($data));
+    }
+
+
+    public function remove()
+    {
+        $sql = sprintf(
+            'DELETE FROM %s %s',
+            $this->db->escapeIdentifier($this->table_name),
+            $this->conditions()
+        );
+
+        return false !== $this->db->execute($sql, $this->values);
+    }
+
+
+    public function listing($key, $value)
+    {
+        $this->columns($key, $value);
+
+        $listing = array();
+        $results = $this->findAll();
+
+        if ($results) {
+
+            foreach ($results as $result) {
+
+                $listing[$result[$key]] = $result[$value];
+            }
+        }
+
+        return $listing;
+    }
+
+
+    public function findAll()
+    {
+        $rq = $this->db->execute($this->buildSelectQuery(), $this->values);
+        if (false === $rq) return false;
+
+        return $rq->fetchAll(\PDO::FETCH_ASSOC);
+    }
+
+
+    public function findAllByColumn($column)
+    {
+        $this->columns = array($column);
+        $rq = $this->db->execute($this->buildSelectQuery(), $this->values);
+        if (false === $rq) return false;
+
+        return $rq->fetchAll(\PDO::FETCH_COLUMN, 0);
+    }
+
+
+    public function findOne()
+    {
+        $this->limit(1);
+        $result = $this->findAll();
+
+        return isset($result[0]) ? $result[0] : null;
+    }
+
+
+    public function findOneColumn($column)
+    {
+        $this->limit(1);
+        $this->columns = array($column);
+
+        $rq = $this->db->execute($this->buildSelectQuery(), $this->values);
+        if (false === $rq) return false;
+
+        return $rq->fetchColumn();
+    }
+
+
+    public function buildSelectQuery()
+    {
+        return sprintf(
+            'SELECT %s %s FROM %s %s %s %s %s %s %s',
+            $this->distinct ? 'DISTINCT' : '',
+            empty($this->columns) ? '*' : implode(', ', $this->columns),
+            $this->db->escapeIdentifier($this->table_name),
+            implode(' ', $this->joins),
+            $this->conditions(),
+            empty($this->group_by) ? '' : 'GROUP BY '.implode(', ', $this->group_by),
+            $this->sql_order,
+            $this->sql_limit,
+            $this->sql_offset
+        );
+    }
+
+
+    public function count()
+    {
+        $sql = sprintf(
+            'SELECT COUNT(*) FROM %s'.$this->conditions().$this->sql_order.$this->sql_limit.$this->sql_offset,
+            $this->db->escapeIdentifier($this->table_name)
+        );
+
+        $rq = $this->db->execute($sql, $this->values);
+        if (false === $rq) return false;
+
+        $result = $rq->fetchColumn();
+        return $result ? (int) $result : 0;
+    }
+
+
+    public function join($table, $foreign_column, $local_column)
+    {
+        $this->joins[] = sprintf(
+            'LEFT JOIN %s ON %s=%s',
+            $this->db->escapeIdentifier($table),
+            $this->db->escapeIdentifier($table).'.'.$this->db->escapeIdentifier($foreign_column),
+            $this->db->escapeIdentifier($this->table_name).'.'.$this->db->escapeIdentifier($local_column)
+        );
+
+        return $this;
+    }
+
+
+    public function conditions()
+    {
+        if (! empty($this->conditions)) {
+
+            return ' WHERE '.implode(' AND ', $this->conditions);
+        }
+        else {
+
+            return '';
+        }
+    }
+
+
+    public function addCondition($sql)
+    {
+        if ($this->is_or_condition) {
+
+            $this->or_conditions[] = $sql;
+        }
+        else {
+
+            $this->conditions[] = $sql;
+        }
+    }
+
+
+    public function beginOr()
+    {
+        $this->is_or_condition = true;
+        $this->or_conditions = array();
+
+        return $this;
+    }
+
+
+    public function closeOr()
+    {
+        $this->is_or_condition = false;
+
+        if (! empty($this->or_conditions)) {
+
+            $this->conditions[] = '('.implode(' OR ', $this->or_conditions).')';
+        }
+
+        return $this;
+    }
+
+
+    public function orderBy($column, $order = 'ASC')
+    {
+        $order = strtoupper($order);
+        $order = $order === 'ASC' || $order === 'DESC' ? $order : 'ASC';
+
+        if ($this->sql_order === '') {
+            $this->sql_order = ' ORDER BY '.$this->db->escapeIdentifier($column).' '.$order;
+        }
+        else {
+            $this->sql_order .= ', '.$this->db->escapeIdentifier($column).' '.$order;
+        }
+
+        return $this;
+    }
+
+
+    public function asc($column)
+    {
+        if ($this->sql_order === '') {
+            $this->sql_order = ' ORDER BY '.$this->db->escapeIdentifier($column).' ASC';
+        }
+        else {
+            $this->sql_order .= ', '.$this->db->escapeIdentifier($column).' ASC';
+        }
+
+        return $this;
+    }
+
+
+    public function desc($column)
+    {
+        if ($this->sql_order === '') {
+            $this->sql_order = ' ORDER BY '.$this->db->escapeIdentifier($column).' DESC';
+        }
+        else {
+            $this->sql_order .= ', '.$this->db->escapeIdentifier($column).' DESC';
+        }
+
+        return $this;
+    }
+
+
+    public function limit($value)
+    {
+        if (! is_null($value)) $this->sql_limit = ' LIMIT '.(int) $value;
+        return $this;
+    }
+
+
+    public function offset($value)
+    {
+        if (! is_null($value)) $this->sql_offset = ' OFFSET '.(int) $value;
+        return $this;
+    }
+
+
+    public function groupBy()
+    {
+        $this->group_by = \func_get_args();
+        return $this;
+    }
+
+
+    public function columns()
+    {
+        $this->columns = \func_get_args();
+        return $this;
+    }
+
+
+    public function distinct()
+    {
+        $this->columns = \func_get_args();
+        $this->distinct = true;
+        return $this;
+    }
+
+
+    public function __call($name, array $arguments)
+    {
+        $column = $arguments[0];
+        $sql = '';
+
+        switch (strtolower($name)) {
+
+            case 'in':
+                if (isset($arguments[1]) && is_array($arguments[1])) {
+
+                    $sql = sprintf(
+                        '%s IN (%s)',
+                        $this->db->escapeIdentifier($column),
+                        implode(', ', array_fill(0, count($arguments[1]), '?'))
+                    );
+                }
+                break;
+
+            case 'notin':
+                if (isset($arguments[1]) && is_array($arguments[1])) {
+
+                    $sql = sprintf(
+                        '%s NOT IN (%s)',
+                        $this->db->escapeIdentifier($column),
+                        implode(', ', array_fill(0, count($arguments[1]), '?'))
+                    );
+                }
+                break;
+
+            case 'like':
+                $sql = sprintf('%s LIKE ?', $this->db->escapeIdentifier($column));
+                break;
+
+            case 'eq':
+            case 'equal':
+            case 'equals':
+                $sql = sprintf('%s = ?', $this->db->escapeIdentifier($column));
+                break;
+
+            case 'gt':
+            case 'greaterthan':
+                $sql = sprintf('%s > ?', $this->db->escapeIdentifier($column));
+                break;
+
+            case 'lt':
+            case 'lowerthan':
+                $sql = sprintf('%s < ?', $this->db->escapeIdentifier($column));
+                break;
+
+            case 'gte':
+            case 'greaterthanorequals':
+                $sql = sprintf('%s >= ?', $this->db->escapeIdentifier($column));
+                break;
+
+            case 'lte':
+            case 'lowerthanorequals':
+                $sql = sprintf('%s <= ?', $this->db->escapeIdentifier($column));
+                break;
+
+            case 'isnull':
+                $sql = sprintf('%s IS NULL', $this->db->escapeIdentifier($column));
+                break;
+
+            case 'notnull':
+                $sql = sprintf('%s IS NOT NULL', $this->db->escapeIdentifier($column));
+                break;
+        }
+
+        if ($sql !== '') {
+
+            $this->addCondition($sql);
+
+            if (isset($arguments[1])) {
+
+                if (is_array($arguments[1])) {
+
+                    foreach ($arguments[1] as $value) {
+                        $this->values[] = $value;
+                    }
+                }
+                else {
+
+                    $this->values[] = $arguments[1];
+                }
+            }
+        }
+
+        return $this;
+    }
+}